The substantial differences in agricultural productivity between Asia and Africa can be largely explained by differences in use of modern inputs. The evidence suggests that better access to infrastructure (such as roads and irrigation) and agricultural services has given Asian farmers significantly better access to modern inputs, while Sub-Saharan African farmers without such an access are not able to fully exploit the benefits of modern agricultural inputs. This brief discusses the relationship between agricultural service provision and modern input use by farmers in Nigeria, with a focus on the differences among states and local government areas (LGA).

China's rise as an economic powerhouse raises a number of questions that are the subject of lively debate. How did the country do it? How applicable are the lessons of China's economic reform of the past thirty years to the challenges it faces in the next three decades? What does the detailed pattern of China's success and challenges look like at the sub-sectoral and sub-national levels, and what does this mean for future policy? How will China's role as a global economic player evolve? The Oxford Companion to the Economics of China presents an original collection of perspectives on the Chinese economy's past, present, and future: 99 entries written by the leading China analysts of our time. The topics covered include: the China model, future prospects for China , China and the global economy, trade and the Chinese economy, macroeconomics and finance, urbanisation, industry and markets, agriculture and rural development, land, infrastructure, and environment, population and labour, dimensions of wellbeing and inequality, health and education, gender equity, regional divergence in China, and a selection of perspectives on some of China's provinces. The Editors are four global leaders in Chinese economic analysis and policy who between them have held or hold the following positions: Director General, International Food Policy Research Institute; Co-Editor, China Economic Review; President Chinese Economists Society; Assistant Director of Research at the IMF; Principal Adviser to the Chief Economist of the World Bank; and Professors of Economics at Ivy League Universities.